Exploring Pschology 7th Edition Meyers Ch 3

25 terms by EmilyRheaKing 

Create a new folder

Advertisement Upgrade to remove ads

Vocabulary

biological psychology

a branch of psychology concerned with the links between biology and behavior

neuron

a nerve cell; the basic building block of the nervous system

dendrite

the bushy, branching extensions of a neuron that recieve messages and conduct impulses toward the cell body

axon

the extension of a neuron, ending in branching terminal fibers, through which mesages pass to other neurons or to muscles or glands

action potential

a neural impulse; a brief electrical charge that travels down an axon

threshhold

the level of stimulation required to trigger a neural impulse

synapse

the juntion between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron. The tiny gap at this junction is called the synaptic gap of cleft.

neurotransmitters

chemical messengers that traverse the synaptic gaps between neurons. They bind to receptor sites on the receiving neuron, thereby influencing whether that neuron will generate a neural impulse.

endorphines

"morphine within"; natural, opiatelike neurotransmitters linked to pain control and to pleasure

nervous system

the sensory and control apparatus consisting of a network of nerve cells

central nervous system

the brain and spinal cord

peripheral nervous system

the sensory and motor neurons that connect the central nervous system to the rest of the body

nerves

bundled axons connect the central nervous system with musceles, glands, and sense organs.

sensory neurons

neurons that carry incoming information from the sense receptors to the central nervous system.

motor neurons

neurons that carry outgoing information from the sense receptors to the central nervous system to the mucles and glands

interneurons

central nervous system neurons that internally communicate and intervene between the sensory inputs and motor outputs

somatic nervous system

the skeletal nervous system

automatic nervous system

controls the glands and the muscles of the internal organs

sympathetic nervous system

part of the nervous system that arouses the body, mobilizing its energy in stressful situations.

parasympathetic nervous system

division of the automatic nervous system that calms the body, conserving its energy

reflex

a simple, automatic response to a sensory stimulus, such as the knee-jerk response

endocrine system

the body's slow chemical communication system; a set of glands that secrete hormones into the blood stream

hormones

chemical messangers, mostly those manufactured by the endocrine glands, that are produced in one tissue and affect another

adrenal glands

a pair of endocrine glands just above the kidneys.

pituitary gland

the master gland of the endocrine system

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set